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HP 4250 4240 4350 Fuser Maintenance Kit Installation Instructions Q5421A RM1-1082 VIDEO

Updated: Sep 12, 2019

How to remove and install the HP 4250 4240 4350 Fuser Maintenance Kit Part number Q5421-69007 Q5421A

Maintenance Kit Contents

  • 1 Fuser Assembly RM1-1082

  • 1 Transfer Roller RM1-0699

  • 1 Tray 1 Pickup Roller RL1-0019

  • 2 RM1-0036 Pikup Roller

  • 4 Feed / Separation Roller RM1-0037

  • 1 RL1-0007 Separation Pad

Repair Notes

  • The maintenance kit page reset count procedure is below.

  • Alternate Manufacturer part numbers: HP Q5421A, Q5421-67903, Q5421-69007

  • Print Yield 225,000 pages

  • UPC  829160301877

Fits these models:

  • HP LaserJet 4240

  • HP LaserJet 4240n

  • HP LaserJet 4250

  • HP LaserJet 4250dtn

  • HP LaserJet 4250dtnsl

  • HP LaserJet 4250n

  • HP LaserJet 4250tn

  • HP LaserJet 4350

  • HP LaserJet 4350dtn

  • HP LaserJet 4350dtnsl

  • HP LaserJet 4350n

If the display panel on your HP LaserJet reads "perform printer maintenance", "perform user maintenance", or anything along those lines it means your printer needs a preventative maintenance kit.

Reset the maintenance count on an HP LaserJet 4200, 4300, 4250, 4350

1. Turn the printer off. 2. Turn the printer back on and, as the memory begins counting, press & hold down the checkmark button while the memory is counting. The memory starts counting at 000MB immediately after you turn the power on. If you press the checkmark buttong too soon - before the memory starts counting - this procedure won't work. 3. Continue to hold down the checkmark button until all three LEDs are illuminated. 4. Release the checkmark button. 5. Press the up arrow (Navigation) button until the message "New Maintenance Kit" appears on the control panel display. 6. Press the checkmark button once.

A message "New Maintenance Kit " will appear in the printer's control panel display and the printer will be reset. Once the maintenance count has been reset the "Perform Printer Maintenance" message won't appear again until the maintenance interval has been reached (200,000 pages on a LaserJet 4200, 4250, 4300, and 4350 series printers).

Other Helpful Resources

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